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Rockwell Automation Publication 1783-UM007G-EN-P - February 2017 227

Configure Switch Features Chapter 7

Table 44 - Config DLR Fields

Field Description

DLR Ring ID (Stratix 5400 switches). Choose the ring number to configure:

• Ring 1

• Ring 2

• Ring 3

Mode Choose one of these modes:

• Disabled—The DLR feature is disabled on the switch.

• Node—The switch is a ring node.

• Supervisor—The switch is a ring supervisor.

Default: Disabled

Port1 Choose a ring port. By default, if the switch is the ring supervisor, port 1 is node 1 on the ring, and port 2 is blocked.

Port2 Choose a ring port.

Supervisor Settings

Role (Precedence) Choose a role to assign to the ring supervisor that corresponds to a predefined precedence value. The switch transmits the precedence value in beacon

frames and uses it to determine the active ring supervisor when multiple supervisors are configured. A higher value means higher precedence. When two

DLR supervisors have the same precedence, the device with the numerically highest MAC address becomes the active supervisor.

Valid values:

• None—0

• Primary—255

• Backup 1—100

• Backup 2—90

• Backup 3—80

• Custom—Type a value from 0…255

Beacon Interval Type an interval for the supervisor to transmit beacon frames.

Valid values: 200…100,000 μs

Default: 400 μs.

Beacon Timeout Type the amount of time ring nodes wait before timing out in the absence of received beacon messages.

Valid values: 200…500,000 μs

Default: 1960 μs

DLR Vlan Id Type the VLAN ID for sending DLR protocol management frames.

Valid values: 0…4095

Default: 0 (no VLAN ID is used)

IMPORTANT: DLR ports function only as access ports and not trunk ports.

Redundant Gateway Settings

Enable Redundant

Gateway

Check the checkbox to enable the configuration of redundant gateways. The configuration fields are available only after you enable the feature.

Default: Disabled

Role (Precedence) Choose a role to assign to the redundant gateway that corresponds to a predefined precedence value. The switch transmits the precedence value is

advertise messages and is used to select the redundant gateway when multiple redundant gateways are configured. A higher value means higher

precedence. When two DLR redundant gateways have the same precedence, the device with the numerically highest MAC address will become the

redundant gateway.